Cannot compile MLB files that include module entities

[eldesh]

MLBasis includes the signature, structure and functor definition as part of basdec.
http://mlton.org/MLBasisSyntaxAndSemantics

[melsman]

This MLton feature will be difficult to support in MLKit. The feature can be simulated at the file-level, however.

[melsman]

To implement the feature, a possible path would be to generate "rebinding-code" dynamically and store it in a file in the MLB directory (with a name generated from the hash of its content)... I'll reopen this issue - maybe someone will attack it at some point...

[eldesh]

@melsman First, I implemented the parser eldesh@893d62f.
Is this a reasonable starting point?
What should I do next? Where should I make changes to achieve it?